Lubricating journal-bearing.



No. 795,552. PATENTED JULY 25, 1905. M. T. SHEETS. LUBRICATING JOURNALBEARING.

APPLICATION FILED APR.3.1905.

@Ui/buzos@ ANDREW n Gli-uwer cm Hmuumocmmms w'mcwcm nc MARION T. SHEETS,OF SALEM, INDIANA.

LUBRICATING JOURNAL-BEARING.

Specication of Letters Patent.

latented July 25, 1905.

Application filed April 3, 1905. Serial No. 253.424.

T0 all wiz/0m it may concern:

Beit known that I, MARION T. SHEETS, a citizen of the United States,residing at Salem, in the county of l/Vashington and State of Indiana,have invented certain new and useful Improvements in LubricatingJournal-Bearings, of which the following' is a specification.

This invention relates to journal-bearings, and has special reference tolubricating shaftbearings.

The object of the invention is to provide a lubricating' journal bearingadapted to fit loosely about a shaft or journal so as to turn with thelatter or independent thereof.

A further object of the invention is to provide a lubricatingjournal-bearing specially adaptable for shaft-collars of Shapers orfrizzers of wood-finishing machines for the purpose of preventingheating of the collars.

A still further object of the invention is to provide a novel andpeculiar lubricating-bearing between a shaft and a loose collar carriedby the shaft to allow the collar free revolution independent of themovement of the shaft and to prevent overheating of the collar.

It is well known that the cutter-shaft of woodworking-machines forshaping molding or other articles employ a collar against which the edgeof the molding' or other board is slid under the cutter to limit thecut. These collars beingl non-revolving and without lubrication, becomeheated from the rotary 'movement of the shaft and scorch and burn theedge of the board or wood, necessitating dressing and finishing toremove the burned surface. Such collars often indent the wood atintervals, which produces an uneven unfinished surface afterwardnecessary to be removed by a separate operation.

It is therefore the purpose of this invention to overcome these andvarious other objections and disadvantages and to furnish a collarrotatable independent of its shaft by the action of the wood as thelatter is slid under a rotary cutter and to provide a looselyfittinglubricating-bearing between the shaft and the collar.

In the accompanying drawings, forming part of this application, Figure lis a sectional view showing a cutter in operation and the application ofthe invention. Fig. 2 is a sectional view on the line .fc as, Fig. l.Fig.

3 is a top view of the collar and bearing assembled. Fig. 4 is anenlarged sectional elesame parts throughout the several views of thedrawings.

While the invention is herein shown and described in connection with awood-cutter and its shaft, it'may be found applicableto various othershafts and journals, and although only one bearing-collar will be hereinreferred to it is obvious that any number of the collars may be used,varying only in diameter to suit the depth of the cut or the characterof the cutter.

The machine to which the invention is specially applicable consists of atable l, upon which the board l is worked, a revoluble shaft 2, having ascrew-stem 3 projecting from a shoulderi above the table, and a cutter5, secured to the stem by a nut 6 and a sleeve 7.

The lubricating-bearing consists of a ring 8, fitting within and securedto the woodbearing collar 9 by a set-screw 10, and a bushing 11, looselyfitting the screw-stem 3 within the ring 8 and projecting slightly abovethe latter. The ring 8 has an oil-duct l2 eX- tending from its topsurface to its inner periphery, and the bushing is provided with annularoil-grooves 13.

The parts being assembled as shown, they are slid over the screw-stem tothe shoulder 4:. The cutter is seated on the projecting portion of thebushing and secured to the said stem by the sleeve and nut. Thisarrangement elevates the cutter slightly above the ring and collar, sothat the two latter elements do not engage the cutter; yet the collar isclose enough to the cutter and of suiiicient height above the surface ofthe table to afford ample bearing for the board on the periphery of thecollar.

It is obvious that during the revolution of the cutter the board is slidon the table against the cutter with a portion of the board edgeengaging the collar, which is turned independent of the shaft by theboard.

It will be seen that the ring which intervenes the bushing and thecollar with the oilgrooves between the ring and the brass or bushingprevents frictional heat being conveyed to the Collar, and the latteronly being` jeeting` from within the ringF above the latter revolved bythe action of the sliding board and having` annular oil-grooveswill notbeoorne heated. In witness whereof I hereunto set my hand HavinggI thusdescribed my invention, what in the presence of two witnesses. claim asnew, and desire to secure by Letters MARON ,L SHEETS atent, is#

A lubricating journal-bearing' comprising llfitnesses: a loose collar, aring having' an oil-duct and VARDER SHANKS, fixed to the collar, and aloose bushing pro THOMAS A. SMITH.

